Will this work to repair cracks in my pool skimmer? Is it elastic or hard like epoxy when cured?

It is elastomeric and should work well for that I would think. I used it to seal the roof seams on a 2015 GMC pickup and it worked great. Keep in mind it is self leveling so it spreads out a bit on its own.

Would this work for adhering rubber matting to a wooden and aluminum boat deck?

yes, it would work. A permanent solution would be 3M 5200 sealant. Try a small piece first!

can i use this to attach solar panels to camper roof? pnls weigh 24pnds.

I used mine for water proofing sealant while glueing down a metal flang which weighed very little. Not sure about the solar panels

Would this work in a swimming pool. I have a concrete pool that has plexiglass windows in the sides below the water level.

I believe so, we use it on the seams of our water slide that's underwater at all times.

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🔧 Seal it. Strengthen it. Own it.

RAPID STRENGTH GAIN - Get strong bonds faster to speed up your projects
FLAWLESS FINISH READY - Easily paintable and sandable for professional results
VERSATILE APPLICATION - Perfect for use both above and below water line
SUPERIOR BONDING POWER - Ensures excellent adhesion on multiple surfaces
ULTIMATE MARINE GRADE SEAL - Resists salt water for long-lasting durability

SIKA Sikaflex-291 is a premium black polyurethane adhesive cartridge designed for robust, waterproof bonding above and below water lines. It offers fast curing strength, excellent saltwater resistance, and a paintable, sandable finish, making it the go-to sealant for marine and construction professionals seeking durable, high-performance results.

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171.44 DT

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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Material	Polyurethane
Brand	SIKA
Style	Can
Item Weight	10.1 Ounces
Item Dimensions LxWxH	14 x 2 x 2 inches
Compatible Material	Wood, Fiberglass, Metal
Water Resistance Level	Water Resistant
Item Form	Oz
Color	Black
Manufacturer	Sika
Part Number	90927
Item Weight	10.1 ounces
Product Dimensions	14 x 2 x 2 inches
Country of Origin	USA
Item model number	90927
Is Discontinued By Manufacturer	No
Size	10.1 oz
Thickness	2 Inches
Item Package Quantity	1
Special Features	Water Resistant
Included Components	Sealant
Batteries Included?	No
Batteries Required?	No

SIKA - 90927 Sikaflex-291 LOT, Black, Polyurethane Adhesive 10.1 fl. oz. Cartridge

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